Answer:
B. Bluetooth technology.
Explanation:
A hardware platform can be defined as a collection of hardware such as an input hardware and output hardware device that are compatible with each other and the software application or program to be executed. All hardware platforms have their respective low level or high level machine language that are compatible with the software application. Some examples of a hardware devices are speakers, monitor, x86, i860, keyboard, MIPS, scanner, central processing unit (CPU) video game consoles (joysticks), IBM Z, ARM, unisys, powerpc, SPARC etc.
Generally, all hardware devices are connected with one another through the use of a wire such as cables or wirelessly such as Bluetooth, infrared etc.
Hence, not all hardware is connected with wires, some hardware might be connected wirelessly with Bluetooth technology.
A Bluetooth technology can be defined as a wireless standard used for transmitting and receiving data over a short-range of distance. Therefore, the operating radio frequency of a Bluetooth technology is 2.45 Gigahertz and for a distance of about 10 meters (30 feet).
